Re: "fooling" a 175 XR2 sport jet -- Hi Performance Boats Inc.

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Date Posted: 07:41:50 07/20/12 Fri
Author: Lance Hetherington
Subject: Re: "fooling" a 175 XR2 sport jet
In reply to: Ned 's message, ""fooling" a 175 XR2 sport jet" on 10:15:43 08/25/06 Fri

My 1999 is doing the same thing...did you ever figure out what was causing the 4 long beeps every 2 minutes?

>I have a 1997 175 sport jet. I purchased a searayder
>with a bad engine. Had it bored .020 and installed new
>pistons, rings, gaskets, oil injection pump drive gear
>and oil injection pump. I premixed fuel in the tank
>and ran it at idle for approx 5-10 minutes with a hose
>hooked up to the flush port. No alarms sounding at
>this time. I took the boat to the river to run it as
>per the breaking in guidelines. After about 15-20
>minutes of operation under 3000 RPM the oil injection
>system alarm went off. It seemed to have an engine
>speed type of frequency to it. After returning from
>the river, checked oil flow, and none existed from the
>pump. I removed pump, checked drive rotation, it was
>intermittent at best. Looking into the drive shaft
>bore, the gear appears to be shot, it also does not
>appear to have enough of the gear "showing" to drive
>the shaft properly. Why would this have damaged the
>gear in such a short time of operation? Why does it
>not appear to have enough gear meshing? The gear part
>number that was installed was 43-14513A2.
>
>I have physically by-passed the oil injection system
>and have changed to premix, which seems to be the
>common concensus. Is there any bypass of the injection
>electrical system? How do you "fool" the TKS ECM? The
>sensor for the pump drive is supposed to read 1-5
>Volts according to the test proceedures in the manual.
>Do these voltages continue to rise with engine RPM,
>(normal operation)? I would like to keep the TKS
>operational due to the over-temperature notification
>and the fuel enrichment function. The
>beep,beep,beep,beep is driving me nuts(er).

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